Coincidental door locking system for vehicles



Sept. 23, 1958 B. H. MCCURDY 2,852,927

COINCIDENTAL DOOR. LOCKING SYSTEM FOR VEHICLES 3 Sheets-Sheet 1 OriginalFiled Nov. 12, 1952 Sept. 23, 1958 BJ-i. M CURDY 2,852,927

COINCIDENTAL DOOR LOOKING SYSTEM FOR VEHICLES Original Filed Nov. 12, 1952 3 Sheets-Sheet 2 INVENTOR. /7, MZZ/r gr. BY

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Sept. 23, 1958 B. H. M CURDY COINCIDENTAL DOOR LOCKING SYSTEM FORVEHICLES 5 Sheets-Sheet 3 Original Filed Nov. 12, 1952 RT'TI 2,852,927Patented Sept. 23, 1958 United States Patent Ofiiice COINCIDENTAL DOORLOCKING SYSTEM FOR VEHICLES Belding H. McCurdy, Jackson, Mich, assignorto Hancock Industries, Inc., a corporation of Michigan Continuation ofapplication Serial No. 320,069, November 12, 1952. This applicationOctober 16, 1956, Serial No. 616,169

32 Claims. (Cl. 70-464) This invention relatesto automotive vehicles,and more particularly to coincidental locking systems in which all thedoors of a vehicle may be simultaneously locked or unlocked by a singlemanipulation. This application is a continuation of application SerialNo. 320,069 filed November 12, 1952, now abandoned.

It is a general object of the invention to provide an improvedcoincidental locking system of simplified construction for vehicle doorsin which all the doors of the vehicle may be simultaneously locked by asimple operation on one of the doors when a passenger leaves thevehicle, and in which the unlocking of any door either from the outsideor inside willsimultaneously unlock all the other doors.

It is another object of the invention to" provide an improvedcoincidental locking system asabove described, in which means areprovided for preventing'accidental locking of the car when the key isleft in the ignition switch, but in which all the doors may neverthelessbe simultaneously locked from the" inside when all th' doors are closed,even if the ignition key is inserted.

It is a further object to provide an improved coincidental lockingsystem of the above nature in which selective means areprovidedfordisenabling the rear door unlocking means so that these doorsmay not be unlatched from the inside, while the unlockingmean's for thefrontdoors are still enabled, so that for example, children in the backseat of a vehicle mayno'taccidentally open therear doors.

It is another object of the invention to provide an improvedcoincidental locking system of the" above nature-in which conventionaltypes of door locks may be utilized with little structural variation,and in which'the locking and unlocking portions of the locks operate inthe same manner as with manual operation; In this connection, it is anobject to provide a locking system in which the locks each have lockingand unlockingsole noidsfor actuating the locking members, thesesolenoids being only momentarily actuated so that there'is'noappre'ciable drain on the battery.

It is another object to provide a locking system" as above described inwhichfailure of the electrical power supply will not prevent locking andunlocking of the doors, which may still be operated manually in theconventional manner. s

It is a further object to provide an improved coincidental lockingsystem of the above nature in which'the unlo'cking'solenoids will beenergized only upon" the initial unlocking operation, so that repeatedopeningsof the doors when they are already unlockedwill not reenergizethe unlocking solenoids.

Other objects, features, and advantages of. thefpresent invention willbecome apparent from the subsequent description, taken in conjunctionwith the accompanying drawings.

In the drawings:

Figure-1 is a schematic diagram of the electrical cir- 2, cuit for theimproved coincidental door locking system of this invention.

Figure 2 is a front elevational view of a preferred front door lock foruse in conjunction with the system;

Figure 3 is a side elevational view thereof;

Figure 4 is a front elevational view of a preferred rear door lock foruse with the system; and

Figure 5 is a side elevational view of the rear lock.

The invention comprises in general a pair of front door locks and a pairof rear door locks for the vehicle which may be of conventionalconstruction as regards their latching functions but which are eachprovided with a locking and an unlocking solenoid. The locking solenoidof each lock is capable when energized of moving the locking means intolocking position; whereas the unlocking solenoid when energized movesthe locking means into unlocking position, so that the door may beunlatched. Each front door is provided with a manually operated lockingswitch mounted, for example, on the interior panel, and this lockingswitch when actuated serves to energize all the locking solenoidssimultaneously, thus locking all the doors. This operation may beperformed when the front door is open, and subsequent closing of thisdoor will not affect the locked condition of the other doors or of thedoor being closed. All the locks are further provided with unlockingswitches preferably mounted on the lock structure, and each of theseswitches serves when actuated to energize all the unlocking solenoids,thereby rendering all the doors unlocked. The front door unlockingswitches may be actuated either manually from the inside or key actuatedfrom the outside, while the rear door unlocking switches are actuatedfrom the inside. The inside operating means for the front and rear doorunlocking switches are suitably controlled by unlatching movement of theinside handles.

Means are provided for insuring that the car is not inadvertently lockedwith the key still in' the ignition switch, and this means preferablytakes the form of a switch in series with the locking switches which isopen whenever the key is inserted in the ignition switch. However, ifthe front doors are both closed, door jamb switches bypass the ignitionsafety switch, so that if a passenger is seated in the vehicle andcloses the doors, he may operate a locking switch to lock all the'do'orseven if his'ignition key is inserted. V

Means are also provided for selectively disenabling the rear doorunlocking switches, thismeans being controlable by an occupant of thefront seat. Thus, children in the back seat may be prevented fromaccidentally opening the rear doors, while the front doors may he stillunlatched. The locks are further provided with means for preventing there-energization of the unlocking solenoids when the locking members arealready in unlocked condition, so that repeated openings of the doorswill not waste electric power. All the locks are also capable of beingmechanically moved into locking or unlocking condition independentlyofthe electrical systern, so that failure of the power supply will notprevent normal use of the locks.

coincidental locking system Referring more particularly to Figure 1 ofthe drawings, 11, 12, 13 and 14 indicate schematically the left front,right 'front, left rear and right rear doors respectively of anautomotive vehicle. The door locks which are mounted in each of thesedoors are not shown in Figure 1, but each door lock is provided with, alocking solenoid and an unlocking solenoid shown schematically in thisfigure. Since the left and right frontdoors are symmetrical and the leftand right rear doors are symmetrical, the locking solenoids for thefront doors may be indicated by the same reference numeral 15 and theunlocking solenoids referred to as 16. The rear doors have lockingsolenoids 17 and unlocking solenoids 18 forming part of their respectivedoor locks.

Also mounted as part of each front door lock is an unlocking switch 19,and the rear door locks are provided with unlocking switches 2(1 Mountedon the interior of each front door is a locking switch 21 whicl. ispreferably a simple push button switch. Although the actual location ofthis switch is unimportant, it may for example be mounted on theinterior panel of the door or on the inside garnish molding. Each frontdoor is also provided with a door jamb switch 22 which is closed whenthe door is closed. Like the locking switch, the actual location of thedoor jamb switch is not pertinent to the invention, and it may besecured to the door jamb or to the door itself so as to be open wheneverthe door is not in closed position. A double pole single throw switch23, henceforth referred to as a baby switch, is preferably mounted onthe dashboard of the vehicle or in a similar place where it can beoperated by a front seat occupant. An ignition safety switch 24 is alsoprovided as part of the ignition switch 25, switch 24 being soconstructed that it is held open whenever the ignition key 26 isinserted in the ignition switch, whether off or on, and closed wheneverthe key is removed. I

Although various wiring arrangements may be used to accomplish theresults achieved by the invention, Figure 1 illustrates a preferredwiring diagram of the coincidental locking system. As shown, thepositive side of battery 27 is connected through a fuse or circuitbreaker to a lead 28 connected to one pole of baby switch 23. Thebattery is also connected through parallel leads 29 and 30 to onecontact of each door jamb switch 22. Lead 30 has interposed therein theignition safety switch 24, and is connected directly to the left frontdoor locking switch 21 and by a lead 31 to the right front door lockingswitch 21. The other side of each switch 21 is connected to the frontdoor locking solenoids 15 by leads 32, and to the rear door lockingsolenoids 17 by leads 33 extending from leads 32. A lead 34interconnects leads 32 so that actuation of either locking switch 21will energize both locking soenoids 15 and l oth locking solenoids 17.The other sides of the locking solenoids are all connected to the groundside of battery 27. Lead 28 from the positive side of the battery alsois connected directly to one side of each front door unlocking switch 19by means of leads 35, and the other side of each unlocking switch 1Q isconnected by a lead 36 to one side of its corresponding unlockingsolenoid 16, the other sides of these solenoids leading to ground. Alead 37 interconnects leads 36 so that the closing of either unlockingswitch 19 acts to energize both unlocking solenoids 16.

A lead 38 connects lead 37 to parallel leads 39 which are connected torear door unlocking solenoids 18. It is therefore seen that actuation ofeither front door unlocking switch 19 will energize rear door unlockingsolenoids 18 as well as front door unlocking solenoids 16. One pole ofbaby switch 23 is interposed in lead 38 so that when the baby switch isopen the rear door unlocking solenoids 18 cannot be energized byactuation of the front door unlocking switches.

The rear door unlocking switches 29 are connected on one side of thepositive terminal of the battery by means of a lead 41 from the batteryconnected to parallel leads 42 which lead to the rear door unlockingswitches. The other sides of the rear door unlocking switches areconnected by leads 43 to the rear door unlocking solenoids. Leads 38 and39, which were described above as serving to energize the rear. doorunlocking solenoids when the front door unlocking switches are actuated,also serve to energize the front door unlocking solenoids when the reardoor unlocking switches are actuated, this circuit being completedthrough leads 37.

The other pole of baby switch 23 is interposed in lead 41, so that whenthe baby switch is open rear door unlocking switches 20 are disenabledand cannot serve to energize any of the unlocking solenoids. In otherwords, with the baby switch closed, actuation of any unlocking switch 19or 20 will unlock all the doors. With the baby switch open, front doorunlocking switches 19 will unlock only the front doors and rear doorunlocking switches 20 will be inoperative.

As stated previously, ignition safety switch 24 is interposed in lead 30from the positive side of the battery, so that when the ignition key isin the switch lead 31) will be opened, thereby disenabling lockingswitches 21. In order to bypass the ignition safety switch 24, the twodoor jamb switches 22 are connected by a lead 44, so that current canflow through lead 29 to the right hand door jamb switch, and if thelatter is closed through lead 44 to the left hand door jamb switch. ifthis switch is also closed current can then be carried to the lockingswitches 21 through leads 45 and 31. It should be noted that both doorsmust be closed in order for the door jamb switches 22 to act as a bypassfor the ignition safety switch. It should also be observed that theoperation of the door jamb switches and ignition safety switch in no wayinterferes with the operation of the baby switch, since the latter onlyaffects enabling of the rear door unlocking switches 20 and unlockingsolenoids 13.

Operation of system In describing the operation of the coincidentallocking system, it is not believed necessary to understand the detailsof operation of the door locks themselves, other than the relationshipof the various switches and solenoids to the door lock structures. Forpurposes of understanding the operation of the system, it shouldtherefore be kept in mind that:

(l) The locking and unlocking solenoids are mechanically connected tothe locking members of their resepctive locks; that is, energization ofeach locking solenoid serves to move its corresponding locking memberinto locking position, and energization of the unlocking solenoids movesthe locking members into unlocking position.

(2) The front door unlocking switches 19, rear door unlocking switches20, locking switches 21 and door jamb switches 22 are all of thenormally open type. The baby switch 23 is selectively held in open orclosed position, and the ignition safety switch 24 is normally closedand is opened by insertion of the ignition key, whether the ignition isoff or on.

(3) The front door unlocking switches 19 are actuatable either byrotation of the key from the outside or by manipulation from the inside.As described later in detail, the inside manipulation may beco-ordinated with manipulation of the inside door handle to unlatch thedoor.

(4) The rear door unlocking switches 20 are actuated only bymanipulation from the inside, and like the front door unlocking switchesare shown as preferably actuated by movement of the inside door handle.

(5) The locking switches 21 are accessible from the inside of the carand are actuated manually. The baby switch 23 is accessible only to anoccupant of the front seat.

(6) The door jamb switches 22 are closed only by full closing of thefront doors.

Beginning with a condition in which there is an occupant in the frontseat, the motor is running and all the doors are closed and locked, ifthe occupant wishes to stop the car, leave the vehicle and lock it, hisfirst step is to remove the ignition key from the ignition lock. Thisaction closes ignition safety switch 24. The occupant then operates oneof the inside front door handles,

kw say; the left front to unlatch the left front door 11. Movement ofthis inside handle momentarily closes. left front unlocking. switch H. Acircuit will be completed fromv the battery throughleads 28 and 35,through left front unlocking switch.19 andlead36 to left front unlockingsolenoid 16. It should be here stated. that the locks shown in theillustratedembodiment are of the type in.which. only thewoutsidehandlevis locked, so that inside handle movement is permitted at alltimes. It will be understoodhowever thatthe principles lot the. coin:-cidentalv locking system could be applied to front door locksaof othertypes.

Actuation of left front unlocking switch-19 will not only energize leftfront unlocking solenoid 16-but will alsoenergize right front unlockingsolenoid. 16 through lead..37. Assuming that baby; switch 23 is closed,rear unlocking solenoids 18 will-also be energized through lead 38 andparallel leads 39'. Thus, the left front door will. be' unlatched andall the other doors will be unlocked,. although: still latched. Itshould be noted that unlocking solenoids 161 and 18 are only actuatedmomentarily, since release of the inside door handle will allow switch.19to assume itslnormally open position; However, the locks willremainin their unlocking condition due to their conventional .overcenteraction, described later in detail.

After opening the left front do-orand as he leaves the vehicle, theoccupant momentarily actuates left locking switch 21. A circuit willthen be completed from the battery through lead 28, ignition safetyswitch 24, lead 30, lead 45, left locking switch.21 and left lead 32 toleft front locking solenoid 15; momentarily energizing this solenoid tomove the left front door locking member into lockingiposition. A circuitwill also be completed from left lead 32 through.lead:34 to the rightfront locking solenoid; and through: leads 33 to'the right :rear andleft rear locking solenoids17. Thus, all the doorilocks will beplaced inlocked condition. Theoperator thenclosesthe left front door. It shouldbe noted at this point that, asdescribed later in detail, the frontdoors are not provided with the kick-off mechanism conventional in somelock constructions which automatically places a door. in unlockedcondition when ittis slammed. In the present instance, the absence ofthis kick-off mechanism means that the left front door will remain inits locked condition, even though it was placed in this condition beforebeing closed.

It is obvious fromthe circuit diagram that a person leavingthrough theright front door 12 can perform the same operations of unlocking andlocking all doors as described above with respect to the left frontdoor.

Assuming that the operator has neglected to remove theignition key fromthe ignition lock, ignition safety switch. 24 willremain. open whetherthe ignition is off or on. This will not affect the unlocking functionof the system, as will be evident from an examination of Figure l. Asseenl inthis figure, current for the unlocking solenoids is carried fromthe battery through lead 38 and parallel leads 39, but does not passthrough lead 30 in which ignition safety switch 24 is interposed.However, lead-30 does supply the current for locking switches 21, sothat there can be no actuation of the locking solenoids 15and 18 ifswitch. 24 is open. It will thus be seen that the steps described abovewill, if the ignition key is left in the switch, merely result in allthe car doors remaining unlocked. The operator upon realizing hismistake may then re-enter the car, remove the ignition key and repeatthe'above described operations.

Assuming now that the operator has returned to the vehicle and wishes tounlock it and enter, he will insert the car key in one of the front doorlocks, say the left front door. Turning the key will. result inmomentarily closing the leftfront unlocking switch 19. This will closecircuits identical with. those described with respect to manipulation ofthe left front inside door handle and 6 will result in unlocking. of'allthe doors. As pointed out below in detail, key rotation will alsomechanically 'unlock the door to which the key is applied, so that inthe event of battery failure the operator is assured of being able tore-enter the vehicle.

Assuming all the doors. are unlocked, occupants may then enter any ofthe doors simultaneously, and it is not necessary for the holder of thekey to get into the vehicle and open each door individually. Whenthepassengers have all entered the vehicle and have closedtheir respectivedoors, the doors may. be. all simultaneously locked by pressing eitherlocking switch' 21. If the key is not yet in the ignition switch, thislocking. action may take place before all the doors are closed, thecircuits being energized in identical fashion with those described abovewith relation to the locking switch. If the ignition key is in theswitch, the front doorsimust be closed inorder that the lockingswitchesbe effective. The circuit from the battery in this case would by-passignition safety switch 24, and include lead 29, right door jamb' switch22, lead 44 and left door jamb switch 22.

If an occupant of the rear seat wishes to leave the vehicle, assumingthat all the vehicle doors are locked, the rear seat occupant operatesan inside door handle which, as will'be later seen, upon its initialmovement momentarily closes a rear unlocking switch 20. Assuming thatthe babyswitch is closed, this movement closes a circuit from thebattery through the baby switch23, lead il, one of the leads. 42, theclosedrear unlocking switch 20, lead 43, and corresponding unlockingsolenoid 18. A circuit is also closed from the closed unlocking switch29 through leads 39- to the other unlocking. solenoid 18 and through onelead 39, .baby. switch 23, lead 38 and parallel leads 37' to front doorunlocking .solenoids 16. It is therefore seen that a rear seat occupantalighting. from the vehicle will unlock all the doors but that thesedoors except his own will still. remain closed. The rear seat passengerafter alighting from the vehicle closes his rear door, which does notaffect the status of the system. In order to relock all the doors, anoccupant of the front seat actuates one of the locking switches 21. Thismay be done before or after the rear door is closed, since no kick-offfeature is present in the rear door locks.

If it is desired that occupants of the rear seat such as children beprevented from unlatching the rear doors from the inside, then babyswitch 23 is opened and one of the locking switches 21 is actuated.After this is done, it 'will be seen that none of the unlocking'switches19 or Ztl are capable of energizing the rear door unlocking solenoids18. For example, if the child pulls on one of the rear inside doorhandles, the subsequent closing .of an unlocking switch 20 willhave noteffect on any of the doors, since the connection between leads 28 andf41is broken. Likewise, actuation of either front door unlocking switch 19Will serve to unlock thefront doors through the normal connectionsdescribed above, but will have no effect on the rear doors because theconnection between the lead 38 and parallel leads 39 is broken.

It will be noted that when the baby switch is in operative or openposition the front seat passengers are not hampered in any way in theirnormal use ofthe lock.- ing system for the front doors. It is alsoimportant to observe that the sequence of operations in locking the reardoors from the inside is of no consequence. In other words, it does notmatter whether the baby switchais opened before the locking switch 19 isactuatedor after such actuation. This is. because the baby switch doesnot affect the connection betweenthe locking switches 19 and the reardoor locking solenoids 17, but only affects unlocking solenoids 18 andthe unlocking switches 20 of the rear doors- Front lock structure Beforedescribing the lock structures indetail it may be Well to point out someof the more important functions which the structures must perform. Aspointed out above, the front door locks in the illustrated embodimenthave means for locking the outside door handle only. Unl'atchingmovement of the inside handle operates the unlocking solenoid, but it isdesirable that this actuation occur only the first time the insidehandle is moved, so that repeated openings of the door will notneedlessly energize the unlocking solenoids. In the front door locks thekick-off feature present in many conventional locks is not present, sothat when the door is slammed after the locking switch is acutuated thedoors will remain locked.

In the rear locks of the illustrated embodiment, locking means areprovided for both the inside and outside handles. Unlatching movement ofthe rear inside handles serve to actuate the unlocking solenoids, andfor this purpose means are provided responsive to the initial movementof the inside handles to actuate the rear door unlocking switches. As inthe front door lock, it is desirable to provide means for preventingrepeated openings of the door from needlessly actuating the unlockingsolenoids, once the doors are unlocked.

Referring now to Figures 2 and 3 illustrating a preferred embodiment ofthe front door lock, it will be seen that the lock is largely ofconventional rotor lock construction. The parts are supported by a platesupport generally indicated at 46 and comprising a base por tion 47 andflange portion 48 in substantially normal relation. Secured in spacedparallel relation with the base portion 47 is a cover member 49, thecover member being secured to the plate support by tabs 51. Amultitoothed rotor latch 52 is pivotally supported on pin 53 by theoutboard bearing support 54 and cover plate 49 and is provided with aplurality of dogging earns 55, these cams having slightly differinglengths to provide the take-up action in the conventional manner. Cams55 are pivoted on a pin 56 passing through striker 57 which is spacedabove the rotor 52.

A plurality of springs 58 are each secured at one end 59 to the housingand engage the individual cams at their other ends 61, urging the camsinto latching position. One of the cams, called the lifting cam, has anextension 62 which is engageable by a portion 63 of a slidable outsiderollback member 64. The rollback member is supported for slidingmovement on a stationary pin 65 disposed within a slot 66 on therollback, and the outer end of the rollback is provided with a flange 67adapted to be engaged by the outside door handle (not shown) of thefront door. Movement of rollback 64 to the right as shown in Figure 2will therefore rock extension 62 and its corresponding lifting camclockwise, this cam having a flange 68 engageable with the other cams 55so that all will be lifted away from latching engagement with the rotorin the conventional mannerv Release of the outside rollback 64 willallow springs 58 to urge cams 55 counterclockwise into latchingposition.

The flange portion 48 of the supporting plate supports a locking slide69 which comprises an elongated member mounted for vertical slidingmovement on the flange. In particular, the slide is guided at its lowerend by its position between the flange 48 and a deck member 71, which aswill be later seen also serves to support the solenoid sub-assembly.Deck member 71 is secured in spaced parallel relation with the flange 48by spaced tabs 72 which guide also the lower edge of the slide. Theupper edge is guided by the edge 73 of a portion 74 of the flangepressed inwardly from the main surface thereof. The locking slide isprovided at its upper end with a flange 75 movable between a lower orunlocking position, shown in dotted lines in Figure 3, out ofobstructing relation with the outside rollback, and an upper or lockingposition shown in dot-dash lines in which it is in obstructing relationwith an extension 76 of the outside rollback, thereby preventingunlatching movement thereof. An

overcenter spring 77 holds the locking slide in its looking or unlockingpositions.

Means are provided for operating the locking slide either by a key fromthe outside of the door or by the inside handle. In particular, the keystation includes a rotatable key cam 77 having radial extensions 78 and79 and secured to key shaft 81 at the lower portion of the flange. Thelocking slide 69 is provided with an extension 82 which is disposedbetween extensions 78 and 79, so that rotation of the key cam 77 in acounterclockwise direction seen in Figure 3 will cause upward or lockingmovement of the slide, whereas clockwise rotation will result inunlocking movement.

The inside rollback member 83 is pivoted at 84 to flange 48 and isprovided at one end 85 with means for connecting a remote controlconnection (not shown) from the inside handle. The upper arm 86 of theinside rollback overlies extension 87 of lifting cam flange 68 so thatcounterclockwise rotation of the inside rollback will cause unlatchingof the rotor. Locking slide 69 is provided with a tab 88 disposedbeneath the lower edge 89 of inside rollback arm 86. The slide as shownin Figure 3 is in its unlocking position in solid lines and in lockingposition in dot-dash lines, and since it Will be seen that in thelocking position tab 88 will be just below edge 89, unlatching movementof the inside rollback will cause edge 89 to engage tab 88, moving theslide to its unlocking position. It will also be noted that no kickofffeature is present in this lock, so that if extension 87 is moveddownwardly due to slamming of the door, it will not engage the lockingslide or any part connected thereto in such a manner as to unlock thedoor.

As stated previously, the locking and unlocking solenoids and theunlocking switch are supported on deck 71, and the supporting portion ofthis deck extends downwardly and to the right as shown in Figure 3. Thelocking solenoid 15 and unlocking solenoid 16 are enclosed in a housing91 secured to deck 71, and these solenoids have arms 92 and 93respectively for actuating the slide. The solenoids illustrated are ofany rotary type, although it will be understood the invention could beadapted for use with other types of solenoids. A bell crank 94 ispivoted at 95 to the deck and is engageable at one end 96 by solenoidarms 92 and 93, arm 92 rocking the bell crank clockwise when the lockingsolenoid is energized, and arm 93 rocking the bell crankcounterclockwise when the unlocking solenoid is energized. The other end97 of the bell crank is forked, and a flange 98 at the lower end of thelocking slide is disposed within this forked end, the flange being shownby solid lines in its unlocking position and by dot-dash lines in itslocking position.

The switch 19 is supported along one edge of deck 71, and may be aMicroswitch or similar type of switch, normally open but energizable bydepression of plunger 99. A switch actuating member 101 is pivoted tothe deck at 95, one surface 102 of this member being adjacent plunger99. The actuating member is held in a normal position as shown in Figure3 in which surface 102 is immediately adjacent plunger 99, the holdingmeans comprising a tension spring 103 anchored at one end 104 to thedeck 71 and urging the actuating member into its normal position. Theside of the actuating member opposite surface 162 is provided with atapered extension 1'35, and the lower end of the locking slide 69 has anextension provided with a tapered toe 106. Toe 106 is shown by dottedlines in its unlocking position and by dot-dash lines in its lockingposition. It will be seen from examination of Figure 3 that when lockingslide 69 is moved from one to the other of its positions, toe 106 willengage extension 105. When the locking slide movement is upwards, thisengagement will cause member 101 to rotate clockwise, having no eflecton switch 19. However, when the locking slide movement is downwards,surface 102 of the actuating member will engage plunger 99 to closeswitch 19.

escape? Operation of front door lock In describing the operation of thefront door lock, it is'believed' unnecessary to describe in detail thefunctions of =the: outside rollback, dogging cams and rotor latch, sincethese operate in the conventional manner. Assuming a condition in whichthe front door is locked, and it is desired to first unlock the frontdoor from the inside, then operate the lockingswitch to lock all thedoors, and then close the front door, the locking slide will initiallybe'initsupper position as shown partly in dot-dash lines in Figure 3,withthe bell crank 94 and solenoid arms in corresponding positions. Inthis position the outside rollbackwill of course be prevented frommovement, but the inside rollback 83 can be rotated by movement of theinsidehandle.

Assuming that the lock is in the door adjacent the occupant' who isleaving the car, this occupant will rotate inside rollback 83counterclockwise, and surface 89 ofthe rollback will engage tab 88 toforce locking slide 69 downwardly. During this movement bell crank94-will rotate counterclockwise toward its position shown in Figure 3,and it should be noted that solenoid arms 92 and 93 are free to move ineither direction at all times when the solenoids are de-energized, sothat this idle movement of the bell crank will not be prevented.Downward movement of the slide also causes toe 106 thereof tomomentarily engage tapered extension 105 of switch actuator 101, and thesubsequent counterclockwise rotation: ofmember 101 will momentarilyclose switch 19. Closure of this switch will, as explained previously,energize' all the unlocking solenoids if the baby switch is closed, andthe front door locking solenoids if the baby switch is open. Unlockingsolenoid 16 shown in Figure 3 will be one of those energized, but theenergization of the unlocking solenoid in this particular lock willperform no function since the locking slide is already in unlockingposition.

It should be noted that if the lock 'under discussion is oppositesthedoor adjacent the occupant leaving the car,

the inside rollback will not be moved, and the locking slide will remainin locking position until the unlocking solenoid 16 is energized, atwhich time the counterclockwise rotation of bell crank 94 will cause thelocking slide to move downwardly. During this downward movement, theswitch 19 of thelock will be momentarily closed, but this'will havenoeflect since the unlocking switch in the lock initially opened by theoccupant will have already energizedall the unlocking solenoids.

If anoccupant operates the inside handle of a front door which isalready unlocked, no movement of the locking slide-69'will take place,and there will be no actuation ofunlocking switch 19'. It will thereforebe seen that there is no needless energization of the unlockingsolenoids when the door locks are already in their unlocked condition.

After the occupanthas stepped out of the front seat, he will actuatelocking switch 21 of the open front door. This will cause lockingsolenoid 15 of each front door lock as well as locking solenoids 17 ofthe rear door locks to be energized. Locking solenoid arm 92 will swingcounterclockwise as shOWn in Figure 3, rocking bell crank 94 clockwiseand lifting locking slide 69. During this movement toe 106 on thelocking slide will engage projection 105' on pivoted member 101, butsince this will cause the pivoted member to rock clockwise, it will haveno eifect on switch 19. The front door locks will then be locked on theoutside since locking flange 75 willlbe in obstructing relation withextension 76 onthe outside rollback. The operator then closes the frontdoor, and subsequent rotation of rotor latch 52 will cause downwardmovement of extension 87 on the lifting cam. However, since there is noprojection on the locking slide in. the'path of extension 87, there willbe no kick-oif action and the door will remain locked.

It should be observed that if another occupant is simultaneously leavingthe. car from the other frontdoor, the openingand closing of the otherfront door will have. no effect on the sequence of actions justdescribed, regardless of whetherthe other front door is closed beforeor. after the operators front door. However, should the first occupantof the front seat open his door, operate his looking switch, and closehis door, and should a second occupant of the frontseat thereafter openthe other front door, this will actuate all the unlocking solenoids, andit will be necessary for the second occupant to actuate his lockingswitch before closing his door.

Assuming now that aperson wishes to enter the locked vehicle, the carkey (not shown in Figures 2 and 3) will be inserted in.the door lock andkey shaft 81 rotated clockwise to the position shown in dotted lines inFigure 3. Extension '79 on cam 77 will engage extension 82 on lockingslide, moving the latter downwardly. This will not only unlock theparticular door in which. the key is inserted, but will also momentarilyclose unlocking switch 19 due to the engagement of toe 106 withextension 105. The unlocking solenoids of the other doors will thus beenergized, and allthe doors will be unlocked. It should be observed thatthe unlocking of the front door into which the key is inserted isentirely mechanical, so that in the event of failure of the electricalsystem the owner is assured of being able to enter the car. After thedoors are unlocked, one or more doors may then be opened from theoutside, and after the occupants enter, these doors are closed from theinside. This action will have no effect on the locking or unlockingsolenoids, but after the occupants enter the closed doors may be lockedby actuating one of the locking switches. 21, as described previously.

Rear lock structure The rear lock is'shownin Figures 4 and 5, and againthe main elements of'the'lock are similar to those of conventional rotorlocktstructures. The plate support 107 of each lockxcomprises a-baseportion 108and flange portion 109 in angular relation, and themulti-toothed rotor 110 is supported by deck plate. 111 in spacedparallel relation with the base portion, and by outboard bearing member112. Doggingicarns 113. are pivoted at 114 on a pin passing throughstriker 11 5, and one of these dogging cams (the lifting cam) has an.extension 116 engageable byoutside rollback 117. The latter is slidablysupported by pin 118, is provided with. a flanged end 119 adapted toengageby the rear outside handle (not shown), and has an extension 121for locking purposes.

The locking member'122 is pivoted at 123 to the flange portion 109-andhas a flanged locking portion 124 movable intoobstructing' relation withextension 121' of the outside rollback; the locking portion being shownby dotdash:..lines in its locking position in Figure 5, and by dottedlines in its unlocking position. Locking member 122 has an upward:apertured extension 124 which is adapted to be. connected with remotelocking means (not shown) such as a button on the inside garnish moldingof the door; Unlike the front door, the rear door unlockingmember isprovided with means for locking the inside rollback 125 as well as theoutside rollback, and this-means comprises extension 126 on lockingmember l22lwith spaced side flanges 127 and 128.. Lower flange 128' ismovable downwardly from the position shown in Figure 5 into obstructingrelation with looking surface 129 on the inside rollback, which ispivoted at 130 to the flange portion 109. Locking member 122 is held inits locking or unlocking position by an overcenter spring 131, and itwill therefore be seen that when in its locking position both.the.insideandoutside handles will be locked.

Describing more particularly the function of the inside rollback 125, itwill be seen that this member is provided with an arm 132 to which alink (not shown) from the remote inside handle may be attached.Counterclockwise movement of the inside rollback as shown inFigure Swillcause unlatching arm 133 of this member to en- 1 1 gage extension 134 onlifting cam 113, moving all of the cams in an unlatching directionagainst springs 135. However, when locking member 122 is in lockingposition as shown partly in dot-dash lines in Figure 5, locking flange128 obstructs movement of surface 129 so that unlatching is prevented.

It will be observed that there is a definite space between the edge offlange 128 in its locking position and surface 129, so that a slightinitial counterclockwise movement of inside rollback 125 is permitted.Means are provided for causing unlocking switch 2 to be actuated by thisinitial movement of the inside rollback. In particular, one side of theinside rollback is provided with a curved cam surface 136 which isadapted to engage a toe 137 on a switch actuating member 138 freelysuspended from a bell crank 139, the function of the switch actuatorbeing described below. The bell crank serves to transmit movement fromthe unlocking solenoid 18 and locking solenoid 17 to locking member 122.The unlocking and locking solenoids are again of the rotary type, havingarms 141 and 142 respectively, and are secured to a deck plate 1% whichis attached to and extends outwardly fro-m flange portion 109 ofsupporting plate 107. Bell crank 139 is pivoted at 144 to the mountingplate, and switch 2% is secured to the mounting plate below the bellcrank. Member 138 is freely pivoted at 145 in suspended relation fromone arm 146 of the bell crank, the end of this arm being disposedbetween flanges 127 and 128, so that rocking movement of the bell crankwill move the locking member 122 between its locking and unlockingpositions.

The disposition of member 138 is such that toe 137 thereof is loweredinto adjacent relation with cam surface 136 of the inside rollback whenthe locking member is in locking position, as shown in dot-dash lines inFigure 5. The lower end of member 138 carries a leaf member 147 which isadjacent a plunger 14% of switch 20. Like the front door unlockingswitch, switch 20 is preferably a normally open switch such as amicroswitch requiring slight movement for actuation. It will be seenthat when the inside rollback is initially rotated counterclockwise,member 133 will be cammed counterclockwise, pressing leaf member 147against plunger 148 and closing the unlocking switch Zll. This willactuate the unlocking solenoid 18 in the door lock under discussion, aswell as the other unlocking solenoids. Bell crank 139 will be rotatedclockwise by solenoid arm 141, swinging locking member 122counterclockwise into its solid line position in Figure 5. This willremove flange 124- from obstructing relation with the outside rollback,and will remove flange 128 from obstructing relation with the insiderollback. It should be noted that the initial spacing between flange 128and surface 12h is sufficient to allow the camming action of member 138to take place.

The inside rollback is now free to continue its rotation in anunlatching direction, and the door will be opened. At the same time,suspended member 138 will be lifted into its full line position inFigure 5, lifting toe 137 away from cam surface 136. Thereafter,repeated unlatching movements of the inside rollback will not affect theunlocking switch 20, since the cam surface 136 will be out of contactwith toe 137. Unnecessary energization of the unlocking solenoids afterthe doors are unlocked is thus prevented.

Operation of rear door lock The operation of the rear door locks mayperhaps best be understood with relation to a passenger in the rear seatwho wishes to leave the vehicle, with an occupant of the front seatrelocking the doors after the rear seat passenger has departed. Assumingan initial condition in which all doors are locked, the lock elementswill be as shown partly in their dot-dash positions in Figure 5. Whenthe rear passenger wishes to leave, he merely actuates the insidehandle, the initial movement of this handle being permitted by the lockspacing described above. The counterclockwise camming of member 138 bycam surface 136 will actuate unlocking switch 20, causing unlockingsolenoids 18 of the rear doors as well as unlocking solenoids 16 of thefront doors to be energized. At the same time, member 138 is lifted awayfrom cam surface 136 and switch 20 is opened. Bell crank 139 will berotated clockwise, swinging locking member 122 counterclockwise tounlock both the inside and outside handles, and inside handle movementmay then be continued to unlatch the rear door. Before or after thisdoor is closed, the front seat occupant may actuate a locking switch 21,and this will actuate locking solenoids 17 to rotate the locking member122 clockwise into locking position. If this is done before the doorsare closed, closing of the door will have no effect on its lockedcondition since there is no kick-off feature incorporated in the lockstructure.

In the case of the rear lock which is opposite the one opened by therear seat occupant, the action will be the same except that the insiderollback will not be moved. Unlocking will occur when the unlockingswitch 20 of the opposite door is actuated, at which time unlockingsolenoid 18 will be energized to unlock the door.

It should be observed that since arm 124 is adapted to be connected to aremote inside lock operator (not shown) such as a button mounted on theinside garnish molding of the door, mechanical locking and unlocking ofthe rear doors may still be accomplished even if there should be a powerfailure.

While it will be apparent that the preferred embodiment of the inventionherein disclosed is well calculated to fulfill the objects above stated,it will be appreciated that the invention is susceptible tomodification, variation and change without departing from the properscope or fair meaning of the subjo-ined claims.

What is claimed is:

1. In a coincidental locking system for automotive vehicles havingdoors, a lock structure on each door of said Vehicle including a latchbolt, means for unlatching each door by an inside and an outside handle,locking means on each of said lock structures for preventing unlatchingby said outside handle, an electrically operated actuator on each lockstructure for moving said locking means into locking position, a secondelectrically operated actuator on each lock structure for moving saidlocking means to unlocking position, an unlocking switch operable byinside handle movement of one of said doors in an unlatching directionto simultaneously energize the unlocking actuators of all of said doors,and a locking switch operable from the inside of the vehicle forsimultaneously energizing the locking actuators for all of said doors.

2. In a coincidental locking system for automotive vehicles havingdoors, a lock structure on each door of said vehicle including a latchbolt, means for unlatching each door by an inside and an outside handle,locking means on each of said lock structures for preventing unlatchingby said outside handle, an electrically operated actuator on each lockstructure for moving said locking means into locking position, a secondelectrically operated actuator on each lock structure for moving saidlocking means into unlocking position, an unlocking switch forming partof each lock and actuatable by movement of inside handle for energizingall of said unlocking actuators, a key station in at least one of saidlock structures and operable from outside the vehicle, means connectingsaid key station and said unlocking switch for actuating said switch byoperation of the key station, and a locking switch operable from withinsaid vehicle to simultaneously energize all of said locking actuators.

3. In a coincidental locking system for automotive vehicles havingdoors, a lock structure on each door of said vehicle including a latchbolt, means for unlatching each door by an inside and an outside handle,locking means on each of said lock structures for preventing unlatching;by said outside handle, an electrically operated actuator on each lockstructure for moving said locking means-into locking position, a secondelectrically operated actuator on each lock structure formoving saidlocking means into unlocking position, no unlocking switch operable byinside handle movement of one of said doors in an unlatching directionto simultaneously: energize the unlocking actuators of all of saiddoors, a locking switch operable from the inside of the vehicle forsimultaneously energizing thelocking-actuators for all of said doors,and a safety switch in circuit with said locking switch and said lockingactuators, saidsafety' switch-being operable by; insertion of thevehicle ignitiontkey in the ignition switch to open said circuit.

4. In an automotive vehicle of the typethaving a lock structure on eachdoor, meansfor unlatching each door by an inside and an" outside handle,locking means on each lock structure for'preventing unlatching by theoutside handle, and an ignition switch, a coincidental locking systemfor said vehicle includinganelectrically operated. actuator on each lockstructure for moving said locking means into locking position, a-secondelectrically operated actuator on each lockstructurewfor movingsaid-locking means into unlocking position, an unlocking switch operableby inside handle; movement of at least one of said doors in an unlachingdirection to simultaneously energize the unlocking actuators; of all ofsaid doors, a locking switch operable. from the inside of the vehiclefor simultaneously energizing the locking actuators for all of saiddoors, and a safety switch in circuit with said locking switch and saidlocking'actuators, said safety switch being open'whenever the ignitionkey is in the ignition switch to open said circuit, removal of theignition key from the ignition switch allowing closure of said safetyswitch to thereby permit locking said doors.

In an automotive vehicle of the type having atlock structure on eachdoor, means for unlatching each'door by an insideand an'outside handle,locking: meanson each lock structure for preventing unlatching by theoutsidehandle,.and an ignition switch; at coincidental locking systemfor said vehicle including an electrically operated actuator on eachlock structure for moving said locking means into locking position, asecond electrically operated actuator on each lock structure for' movingsaid locking means into unlocking position; an unlockingswitch operableby inside handle movement of at least one of said doors in an unlatchingdirection to simultaneously energize the unlocking actuators of allof'said doors, a locking switch operable from the inside of the vehiclefor simultaneously energizing the locking actuators for all of saiddoors, a safety switchin circuit with said locking switch and saidlocking actuators, said safety switch being operable by insertion of thevehicle ignition key in the ignition switch to open. said circuit, andmeans operable when certain doors of said vehicle are closed to enablesaid locking switch to energize said locking actuators when said safetyswitch is open.

6. In an automotive vehicle of the type having a lock structure. on eachdoor, means for unlatching each door by an inside and an outside handle,locking means on each lock structure for" preventing unlatching by theoutside handle, and an ignition switch, a coincidental locking systemfor said vehicle including an electrically operated actuator on eachlock structure for moving said locking means into locking position, asecond electrically operated actuator on each lock structure for movingsaid locking means into unlocking position, an

unlocking switch operable by inside handle movement of at least one ofsaid doors in an unlatching direction to simultaneously energize theunlocking actuators. of all of said doors, a locking switch operablefrom the inside of the vehicle for simultaneously energizing the lockingactuators for all of said doors, a safety switch in circuit with saidlocking switch and said locking actuators,

said safety switch being operabletby' the ignition key and being openwhenever the ignition keyisin the: ignition switch to open said circuit,acircuitbypassing said safety switch, and a plurality of door jambswitches in said by-passcircuit, said door jamb, switches being closedwhen certain doorssof said vehicle, areclosed to enable saidlockingwswitch to energize said locking actuators whentsaid safetyswitch is open.

7. In an automotivevehicle of the type having front and.rear doors, alock structure oneach door, means for unlatching eachtdoor by an insideand an outside handle, locking means on the front door lock structuresfor preventing unlatching by said outside handle, and locking means onthe rear door lockstructures for preventing unlatching by either handle,a coincidental locking system for said vehicle including an-electricallyoperated actuator on each lock structure for moving said locking meansinto locking position, a secon'd electrically operating actuator oneach' lock structure for" moving saidlocking meansinto unlockingposition, a locking switch operable from thetinside of the vehiclefonsimultaneously energizing the locking actuators for all of said:doors, an unlocking switch operable by inside handle movement of each ofsaid doors in an unlatching direction to simultaneously energizev theunlocking actuators of all of said doors, and a selectively operableswitch movable to a position disenablingall of said. unlocking switcheswith respect to said rear door unlocking actuators.

8. In an. automotive vehicle of thetypehaving front and rear doors, alock structure on each door, means for unlatching eachdoor by an insideand an outside handle, locking means on the frontdoor lock structuresfor preventing unlatching; by said outside handle, and locking means onthe rear door lock structures for preventing unlatching by eitherhandle, acoincidental locking system for said vehicle including an.electrically operated actuator. on each lock structure for moving saidlocking means into locking position, a second electrically operatingactuator on each lock structure for moving said locking means intounlocking position, a locking switch operable from the inside of thevehicle for simultaneously energizing the locking actuators for all ofsaid doors, an unlocking switch operable by inside handle movement ofeach of said doors in an unlatching direction to simultaneously energizethe unlocking actuators of all of said doors, anda selectively operableswitch movable to a position disenabling said rear door unlockingswitches with respect to all of said unlocking actuators.

9. In an automotive vehicle of the type having front and rear doors, alock structure on each door, means for unlatching eachdoor by an insideand an: outside handle, locking means on the=front door" lock structuresfor preventing unlatching by said outside handle, and locking means onthe rear door lock structures for preventing unlatching by eitherhandle, a: coincidental looking system for said vehicle including anelectrically operated actuator on each lock structure for moving saidlocking meansinto lockingposition', a second electrically operatingactuator on each lock structure for moving said locking means intounlocking position, a locking switch operable from the inside of thevehicle for simultaneously energizing the locking actuators for all ofsaid doors, an unlocking switch operable by inside handle movement ofeach of said doors in an unlatching direction to simultaneously energizethe unlocking actuators of all. of said doors, and selectively operableswitch means movable to a position disenabling all of said: unlockingswitches with respect to said rear door unlocking actuator anddisenabling saidrear doorunlocking switches with respect to all of saidunlocking actuators.

10. In an automotive vehicle of the'type having front and rear doors, alock structure on each door, means for unlatching each door by an insideand an outside handle, locking means on the front door lock structuresfor preventing unlatching by said outside handle, locking means on therear door lock structures for preventing unlatching by either handle,and an ignition switch, a coincidental locking system for said vehicleincluding an electrically operated actuator on each lock structure formoving said locking means into locking position, a second electricallyoperating actuator on each lock structure for moving said locking meansinto unlocking position, an unlocking switch operable by inside handlemovement of each of said doors in an unlatching direction tosimultaneously energize the unlocking actuators of all of said doors, aselectively operable switch movable to a position disconnecting saidrear door unlocking switches from all of said unlocking'actuators, alocking switch operable from the inside of the vehicle forsimultaneously energizing the locking actuators for all of said doors,and a safety switch in circuit with said locking switch and said lockingactuators, said safety switch being opened whenever the ignition key isin the ignition switch whereby energization of said locking actuators isprevented.

11. In an automotive vehicle of the type having front and rear doors, alock structure on each door, means for unlatching each door by an insideand an outside handle, locking means on the front door lock structuresfor preventing unlatching by said outside handle, locking means on therear door lock structures for preventing unlatching by either handle,and an ignition switch, a coincidental locking system for said vehicleincluding an electrically operated actuator on each lock structure formoving said locking means into locking position, a second electricallyoperating actuator on each lock structure for moving said locking meansinto unlocking position, an unlocking switch operable by inside handlemovement of each of said doors in an unlatching direction tosimultaneously energize the unlocking actuators of all of said doors, aselectively operable switch movable to a position disenabling said reardoor unlocking switches with respect to all of said unlocking actuators,a locking switch operable from the inside of the vehicle forsimultaneously energizing the locking actuators for all of said doors, asafety switch in circuit with said locking switch and said lockingactuators, said safety switch being opened whenever the ignition key isin the ignition switch whereby energization of said locking actuators isprevented, and a by-pass circuit for said safety switch and includingdoor jamb switches closable when certain doors of the vehicle areclosed, whereby energization of said locking actuators by said lockingswitch is permitted when said safety switch is opened.

12. In an automotive vehicle having front and rear doors with a lockstructure on each door, means for unlatching each lock structure by aninside and an outside rollback, means for locking the front and reardoors against unlatching by said outside rollbacks, an unlockingsolenoid mounted as part of the lock structure of each door and adaptedto move said locking means into unlocking position, an unlocking switchmounted as part of each of said lock structures, means connecting theinside rollback of each of said lock structures to its correspondingunlocking switch, movement of each inside rollback when said lockingmeans is in locking position causing actuation of said unlocking switch,and means for energizing all of said unlocking solenoids when any ofsaid unlocking switches are actuated.

13. In an automotive vehicle having front and rear doors with a lockstructure on each door, means for unlatching each lock structure by aninside and an outside rollback, locking means on said front door lockstructures to prevent unlatching by said outside rollback, locking meanson said rear door lock structures to prevent unlatching by said insideor outside rollbacks, an unlocking solenoid mounted as part of the lockstructure of each door and adapted to move said locking means intounlocking position, an unlocking switch mounted as part of each of saidlock structures, means operated by movement of said front door lockingmeans from its locking position to its unlocking position to actuate itscorresponding unlocking switch, means allowing limited movement of saidrear door inside rollbacks when said rear door locking means are inlocking position, means operated by said limited movement to actuatesaid rear door unlocking switches, and means for energizing all of saidunlocking solenoids when any of said unlocking switches are actuated.

14. In an automotive vehicle having front and rear doors with a lockstructure on each door, means for unlatching each lock structure by aninside and an outside rollback, means for locking the front and reardoors against unlaching by said outside rollback, an unlocking solenoidmounted as part of the lock structure of each door and adapted to movesaid locking means into unlocking position, an unlocking switch mountedas part of each of said lock structures, means connecting the insiderollback of each of said lock structures to each of its correspondingunlocking switches, movement of each inside rollback when said lockingmeans is in locking position causing actuation of said unlocking switch,means for energizing all of said unlocking solenoids when any of saidunlocking switches are actuated, and means on each of said lockstructures for preventing said inside rollback movement from actuatingsaid unlocking switches when said locking means are already in unlockingposition.

15. A vehicle locking structure for use in a coincidental lockingsystem, including a latch bolt, dogging means for said bolt, an outsiderollback and an inside rollback movable to remove said dogging meansfrom latching engagement with said bolt, a locking member movablebetween a locking position preventing unlatching movement of saidoutside rollback and an unlocking position permitting such movement,means on said inside rollback for moving said locking member fromlocking to'unlocking position, a key station for moving said lockingmember between its said positions, a locking solenoid energizable tomove said locking member into locking position, an unlocking solenoidenergizable to move said locking member into unlocking position, aswitch adjacent said locking member, and means operated by movement of rsaid locking member into unlocking position for momentarily actuatingsaid switch.

16. The combination according to claim 15, further provided with a bellcrank operatively connected between said locking member and saidsolenoids, the solenoids being of the rotary type and each having arotary arm engageable with said bell crank.

17. The combination according to claim 15, said momentary switchactuating means comprising a pivoted member adapted to engage saidswitch when swung in one direction, and resilient means for urging saidpivoted member into a position disengaged from said switch, said lockingmember momentarily engaging said pivoted member as it passes intounlocking position to swing said pivoted member into engagement withsaid switch.

18. In a locking structure for an automotive vehicle having acoincidental locking system, a rotary multitoothed latch bolt, doggingcams for said bolt, an outside rollback movable to withdraw said doggingcams from latching engagement with said bolt, an inside rollback movableto unlatch said bolt, a locking member slidable between a lockingposition obstructing movement of said outside rollback and an unlockingposition, means for moving said locking member into unlocking positionby unlatching movement of said inside rollback, a key station connectedto said locking member for moving same between its positions, a lockingsolenoid and an unlocking solenoid, means connecting said solenoids tosaid locking member for movement between its said positions, a switchmounted adjacent said locking member, a swinging member resiliently heldin a position adjacent said switch, and

a portion on said locking member momentarily engageable with saidswinging member when the locking member moves from locking to unlockingposition, to thereby momentarily move said swinging member intoengagement with said switch.

19. In a locking structure for automotive vehicles, a plate support, abolt movably supported on said plate support, dogging means for saidbolt, an outside and an inside rollback movable to withdraw said doggingmeans from said bol-t, a locking member movably mounted on said platesupport, said locking member being movable between a locking positionobstructing movement of said outside rollback and an unlocking position,a rotary locking solenoid and a rotary unlocking solenoid mounted onsaid plate support, said solenoids having rotatable arms, and a bellcrank engageable by said arms and connected to said locking member,whereby energization of said unlocking solenoid moves said lockingmember into unlocking position and energization of said locking solenoidmoves said locking member into locking position.

20. In a locking structure for an automotive vehicle, a plate supporthaving a base portion and a flange portion, a bolt movably supported onsaid base portion, dogging means for said bolt, an outside and an insiderollback movable to withdraw said dogging means from said bolt, alocking member movably mounted on said flange portion, said lockingmember being movable between a locking position obstructing movement ofsaid outside rollback and an unlocking position, a locking solenoid andan unlocking solenoid mounted on said plate support, said solenoidshaving rotatable arms, and a bell crank engageable by said arms andconnected to said locking member, whereby energization of said unlockingsolenoid moves said locking member into unlocking position andenergization of said locking solenoid will move said locking member intolocking position.

21. A locking structure for an automotive vehicle having a coincidentallocking system, including a latch bolt, dogging means for said bolt, anoutside rollback and an inside rollback movable to move said doggingmeans from latching position, a locking member movable between a lockingposition obstructing unlatching move ment of said rollbacks and anunlocking position, said locking member and said inside rollback havingmutually abutting locking surfaces when said locking member is inlocking position, the relative positions of said locking surfacesallowing limited movement of said inside rollback, a switch mountedadjacent said inside rollback, and means responsive to said limitedmovement for actuating said switch.

22. The combination according to claim 21, further provided withdisenabling means for said switch actuating means, said disenablingmeans being operated by movement of said locking members into unlockingposition.

23. A locking structure for an automotive vehicle having a coincidentallocking system, including a latch bolt, dogging means for said bolt, anoutside rollback and an inside rollback movable to move said doggingmeans from latching position, a locking member movable between a lockingposition obstructing unlatching movement of said rollbacks and anunlocking position, said locking member and said inside rollback havingmutually abutting locking surfaces when said locking member is inlocking position, the relative positions of said locking surfacesallowing limited movement of said inside rollback, a locking solenoidand an unlocking solenoid, means connecting said solenoids to saidlocking member for moving the same between its said positions, a switchmounted adjacent said inside rollback, and means responsive to saidlimited movement for actuating said switch.

24. The combination according to claim 23, said switch actuating meansbeing movable with said locking member, and a cam surface on said insiderollback engage- 18 able with said switch actuating means when saidlocking member is in locking position, movement of said locking memberto unlocking position withdrawing said switch actuating means from thepath of said c am surface.

25. In a locking structure for an automotive vehicle having acoincidental locking system, a plate support having a base portion and aflange portion, a rotary multitoothed bolt mounted on said base portion,dogging means for said bolt, an outside rollback movable to withdrawsaid dogging means from latching engagement with said bolt, an insiderollback pivoted to said flange portion for unlatching said bolt, alocking member pivoted to said flange portion and having lockingsurfaces movable into obstructing relation with said rollbacks when thelocking member is moved into locking position, the locking surface forsaid inside rollback being so positioned as to permit limited intialmovement of sad rollback, locking and unlocking solenoids mounted onsaid supporting plate, said solenoids being of the rotary type, a bellcrank rockable by said solenoids in opposite directions, said bell crankbeing connected to said locking member for moving the same between itssaid positions, a switch mounted adjacent said inside rollback, a switchactuating member movable with said bell crank, and a cam surface on saidinside rollback and engageable with said switch actuating member duringsaid limited initial movement and when said locking member is in lockingposition to actuate said switch, movement of said locking member intounlocking position causing wthdrawal of said switch actuating memberfrom the path of movement of said cam surface.

26. In combination, a plurality of vehicle door lock structures havinglatch bolts, an inside and an outside rollback on each lock structurefor unlatching said latch bolt, locking means on each of said lockstructures for preventing unlatching by its outside rollback, anelectrically operated actuator on each lock structure for moving saidlocking means into locking position, a second electrically operatedactuator on each lock structure for moving said locking means tounlocking position, an unlocking switch for each lock structure operableby movement of its corresponding inside rollback in an unlatchingdirection, means responsive to operation of any of said unlockingswitches simultaneously to energize the unlocking actuators of all ofsaid structures, a locking switch, and means responsive to operation ofsaid locking switch for simultaneously energizing the locking actuatorsfor all of said lock structures.

27. The combination according to claim 26, further provided with aselectively operable switch movable to a position disenabling all ofsaid unlocking switches with respect to certain of said unlockingactuators.

28. In combination, a plurality of vehicle door lock structures, meansfor unlatching each lock structure including an inside and an outsiderollback, means for locking said lock structures against unlatching bysaid outside rollbacks, an electrically operated actuator for each lockstructure adapted to move its corresponding locking means into unlockingposition, an unlocking switch for each of said lock structures, meansconnecting the inside rollback of each of said lock structures to itscorresponding unlocking switch, whereby movement of each inside rollbackwhen its corresponding locking means is in locking position will causeactuation of said unlocking switch, and means responsive to actuation ofany of said unlocking switches for energizing all of said electricallyoperated actuators.

29. The combination according to claim 28, further provided with meanson each of said locking structures for preventing said inside rollbackmovement for actuating said unlocking switches when said locking meansare already in unlocking position.

30. The combination according to claim 28, further provided with asecond electrically operated actuator on each locking structure formoving said locking means into locking position, a locking switch, andmeans responsive to operation of said locking switch for simultaneouslyenergizing the locking actuators for all of said locks.

31. In a coincidental locking system for the doors of automotivevehicles, a lock structure on each door, inside and outside handles oneach door for moving the corresponding lock structure to unlatchingposition, a locking member on each lock structure movable between aninoperative position and a locking position rendering the correspondingoutside handle ineffective for moving its lock structure to unlatchingposition, an electrical actuator on each door for moving said lockingmember to its inoperative position, a normally open locking switchaccessible to an occupant of the vehicle, means responsive to closure ofsaid locking switch for locking all doors of the vehicle simultaneously,a normally closed ignition key-controlled switch in series with saidlocking 20 are closed, whereby said locking switch will be enabledregardless of the position of said ignition key-controlled switch.

32. In a coincidental locking system for the doors of automotivevehicles, a lock structure on each door, in-

side and outside handles on each door for moving the corresponding lockstructure to unlatching position, a normally open locking switchaccessible to an occupant of the vehicle, means responsive to momentaryclosure of said locking switch for simultaneously disenabling all ofsaid outside handles, a normally closed ignition key-controlled switchin series with said locking switch, said ignition key-controlled switchbeing movable to open position when the ignition key is inserted in theignition lock whereby said locking switch will be disenabled, a by-passcircuit in parallel with said ignition key-controlled switch and inseries with said locking switch, and a pair of normally opendoor-operated switches in said by-pass circuit, said door-operatedswitches being closed when two doors of said vehicle are closed, wherebysaid locking switch will be enabled regardless of the position of saidignition key-controlled switch.

No references cited.

m way;

